2020 journal article

Cite it

Tuning the interfacial spin-orbit coupling with ferroelectricity

NATURE COMMUNICATIONS, 11(1).

By: M. Fang ^*, Y. Wang ^*, H. Wang ^*, Y. Hou ^*, E. Vetter ⁿ, Y. Kou^*, W. Yang ^*, L. Yin ^* ...and 9 other authors, including 1 NC State author, Z. Xiao ^*, Z. Li ^*, L. Jiang ^*, H. Lee ^*, S. Zhang ^*, R. Wu ^*, X. Xu ^*, D. Sun ⁿ , J. Shen ^*

10.1038/s41467-020-16401-7

Find Text @ NCSU

open access via www.nature.com (publisher PDF)

PubMed

UN Sustainable Development Goal Categories

7. Affordable and Clean Energy (OpenAlex)

11. Sustainable Cities and Communities (Web of Science)

Source: Web Of Science

Added: June 29, 2020

AbstractDetection and manipulation of spin current lie in the core of spintronics. Here we report an active control of a net spin Hall angle, θSHE(net), in Pt at an interface with a ferroelectric material PZT (PbZr0.2Ti0.8O3), using its ferroelectric polarization. The spin Hall angle in the ultra-thin Pt layer is measured using the inverse spin Hall effect with a pulsed tunneling current from a ferromagnetic La0.67Sr0.33MnO3 electrode. The effect of the ferroelectric polarization on θSHE(net) is enhanced when the thickness of the Pt layer is reduced. When the Pt layer is thinner than 6 nm, switching the ferroelectric polarization even changes the sign of θSHE(net). This is attributed to the reversed polarity of the spin Hall angle in the 1st-layer Pt at the PZT/Pt interface when the ferroelectric polarization is inverted, as supported by the first-principles calculations. These findings suggest a route for designing future energy efficient spin-orbitronic devices using ferroelectric control.